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Sinotruk HOWO Heavy-duty Truck MC11 MC13 Engine Spare Parts Oil Module Assembly 201V05000-7043

The Fuel Line Module Assembly, commonly referred to as the "Oil Road Module" in Chinese (a literal translation), typically refers to the high-pressure fuel rail system used in common rail diesel engines. It is not a single part but an integrated fuel delivery module that includes:

High-pressure fuel rail (common rail)
Fuel pressure sensor
Fuel pressure regulator (or control valve)
Injector supply lines
Mounting brackets and seals
This assembly plays a central role in modern electronic diesel injection systems by storing high-pressure fuel and delivering it uniformly to each injector for precise combustion.

It is widely used on SINOTRUK MC11/MC13, Shacman X3000/F3000, FAW J7, Weichai WP series, and other advanced commercial vehicles equipped with Bosch CP3/CP4-type common rail systems.

 
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  • 201V05000-7043

  • Sinotruk HOWO

Attribute Description
Part Name Fuel Rail Module / Common Rail Fuel Module / High-Pressure Fuel System Assembly
Alternative Names Fuel Distribution Module, Oil Path Module (Chinglish), Fuel Supply Manifold
System Type Common Rail Direct Injection (CRDI) – Bosch Generation III or IV compatible
Operating Pressure 1,600 – 2,000 bar (23,000–29,000 psi) depending on engine calibration
Material
• Rail Body: Cold-forged carbon steel or alloy steel

• Internal Channels: Precision-machined stainless steel bore

• Seals: Heat-resistant NBR or FKM fluororubber
Components Included
• Fuel rail (manifold)

• Fuel pressure sensor (e.g., 0–200 MPa range)

• Fuel metering unit / pressure control valve

• Injector connection ports (4–6 outlets)

• Mounting hardware and O-rings
Function Stores pressurized fuel from HP pump and distributes it evenly to injectors under stable pressure
Compatibility Designed for use with ECU-controlled CRDI systems (e.g., Bosch EDC17, Denso HPCR)
Condition Brand new (OEM fresh stock or premium remanufactured)
油路模块总成-3

Name1

油路模块总成-4

Name2

Important Usage & Installation Notes

  1. Professional Installation Required

    • Involves working with ultra-high-pressure fuel systems (>1,800 bar).

    • Must be performed by trained technicians with proper tools and safety gear.

  2. Depressurize Fuel System First

    • Never open fuel lines while engine is hot or recently running.

    • Use diagnostic scanner to activate pressure release function, or wait >30 minutes after shutdown.

  3. Use Genuine or High-Quality Components

    • Low-cost modules often have poor machining tolerances — leads to imbalance and injector damage.

    • Choose OEM or Bosch-remanufactured units for reliability.

  4. Replace All Seals and O-Rings

    • Install new copper sealing washers and rubber O-rings at injector ports.

    • Old seals cause leaks and pressure loss.

  5. Torque Injectors Correctly

    • Typical injector tightening torque: 70–80 Nm + 90° rotation (check manual).

    • Over-tightening cracks rail flanges.

  6. Avoid Contamination

    • Keep open ends capped until connected.

    • Dust or dirt can destroy injectors and clog internal passages.

  7. Bleed Air from System

    • Prime low-pressure side first using hand primer or electric lift pump.

    • Crank engine without starting to build initial rail pressure.

  8. Perform ECU Adaptation After Replacement

    • Some systems require ECU coding or adaptation after fuel rail replacement.

    • Use SINOTRUK TechTool, KTS, or compatible diagnostic device.

  9. Inspect High-Pressure Lines

    • Check for kinks, corrosion, or loose fittings before reassembly.

    • Damaged pipes must be replaced in pairs.

  10. Test After Installation

    • Rail pressure buildup

    • Idle stability

    • No warning lights

    • Start engine and monitor:

    • Conduct road test under load.

  11. Storage Advice

    • Store upright in dry, clean environment.

    • Protect electrical connectors from moisture.


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